Backup/sync software

I'm looking for a good and FREE sync program, so that i can backup multiple files to another hard drive. I know that there's Microsoft's SyncToy, but it requires NetFramework, which i don't have. I tried to find with Google, but didn't find any free program.

Also good, if someone can tell how to make a batch file to copy multiple files to another hd.

Edit: I found a program called Karen's Replicator, but i have a problem with it. I made a new filter to copy .ini and .adr files from one folder, but it only copies those .ini files from that folder. Why is that?

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